Air-brush.



0. G. WOLD. AIR BRUSH. APPLICATION FILED MAY5, 1911.

1 01x358, at nted Feb. 13, 1912.

Y I $31" \\\-\Q=\\\\\\\\\ WITNESSES INVENTOR ter is discharged.

UNilTElD onaos o. ween, or CHICAGG, tame-tors.

AXE-BRUSH.

To. all whom it may con/cam:

Be it known that I, OLA'LTS C. Wow, a citi-.

No. 767,510, the air is delivered through an annular opening which completely sun rounds the opening througlrwhich thecolor delivered, while in the second mentioned patent, namely, No. 910,341, the air-is delivered through a single orifice, located heneath that through which the coloring met- The air brushes of tooth of said patents tend to discharge the coloring matter in a. somewhat irregular manner, so that it is not delivered onto the paper in the form of a thin, ilat line, as is the case when tlsing a fine hair brush of ordinary form.

The main object of the present invention is to provide an air crush which will deliver the color in the form of a spray, resembling as much as possible the eii'ect which is produced in drawing a line with a fine hair brush. To this end, i provide means for delivering a fine jet of air on each side of the color orifice, the result being that the color is delivered in the form of a very fine flat jet.

Other objects are to generally improve the discharge end of the air brush, and to construct it in such manner that the air rhanr her and discharge pipes will be easily accessible for the purposes of cleaning or pair without; in any way disturbing the needle valve and associated parts which control the flow of color. Also to provide an air discharge member of such form thatit may be easily removed and replaced hyone having larger openings, and adapted to de-' liver larger jetsot air for rougher or heavier work.

peoiieatilon 01" Letters Eatent.

application filer.- May 5,

Serial No, 825,356.

'Other object-s and uses will appear from a detailed descriptionof the invention which consists in the features of construction and combination of parts hereinafter described and claimed.

Referring now to the drawing, Figure 1. shows a plan view of the orush; Fig. 9. shows a detailed cross section of the forward por tion of the brush taken on the line 22 of Fig. 1, looking in the direction of the arrows Fig. 3shows a plan detail taken on the line 3-3 of 2, looking in the direction of the arrows; Fig. 4 shows a detail of the color receptacle taken onv the line M of Fig-'3 looking in the direction of the arrows; and Fig. 5 shows a greatly enlarged plan detail cross section of the discharge tip of the air pines and the needle valve. Referring now to the drawings, the air is delivered to the air rush through a valve 5, the opening and closing of which are controlled hy the vertical movements of a. button '1'. A spring 8 normally keeps the valve closed. The air passes up through passages 9 and 10 into a chamber 11 in the forward end of the brush. The color is-carried in a panlQ, the siphon connection 13 of whichv is swivel-jointed to the body of the air brush at 14- the color thence passing into a.

chamber A needle rod 16 extends 1 through th color chamber 15, its backward and forwa d movements being controlled by" T he elements which l have thus far described are not new'in this'present application, and their description is only neces sary in order to show the general manner in which strucled. i will now describe the forward portion of the hrushincluding the needle valve for roiiti'olling the flow of color and the air discharge pipes, for my present invention relates particularly to these elements.

Thechaniber l5 communicates directly with an elongated opening, 18, the forward end of which carries-a fine needle valve '19, the same being preferably secured at .20 onto the end of the pipe 21, which,

my present air brush iscon if'ifilfi iexwerti posiiiw by ihe sp 1! EV mevnw the needle red back @25 1 1301 131 L the ferwerd pertien oi? the pee-- sage 18, The needle red. hes its feiweri. pori i rmhwliy tapered enii ei e to eompiet dose the p in the cap 12 when heeciie reel is thrown into e2 the emeuntl of opening of the needle veive can be accurately ieguiaied.

The ehemhel in advance of the partition 11- eiesed by e. cap 23 which 11:; threaded at 24: ante e lug which comprises rear port-i021 0:13 the 00101 18. Th1 cap 12; prm'ided with :1 pair of dspeseci eh:- pipes e116: 2?, the enes 0 which communicate dith the space 11 the enter em; 2?) 01 which. we went iiiwe'r close he the needle weive 19 iii 6 the air dis charged very cieee be @0101 'iischerge end 0f the needle veive. order :30 insure e'rliscimrge of air close as pe s "ie to the needle vaive, 1 cut away the inner faces 30 m? the enis of the air pipes Se that the air is dischargeci not only from the of said pipes, but e15; from their sides against the outer sxu'fece (if the emi of the, needle valve.

A study miriicuierly of 3 and 5 SilOW that the ends of the eil' will the greater poiftien of the air at a 001m 31 just in advance of the em of the neec iie ve ive. Aise, inasmuch the ewe jeis 0f e some from the oppeei'te eiries the we valve ai equal engiee thereto, any 0; mg tendency of one g'et of airtending; to ihrew ihe 30%;": off to ene side is neuiireiized *ihe other jet 0f air, so that a pm Lfl befhmceai leeuits, zinei the 0010: ie carr ed etwig i em; from i he needle veive, and :2 0f the needle.

.1; Wiii a of Sue eh (heeherg needle vein: fhm" in h .i;

0min:

by .i s which u re evimie above i" he unileiut 7 are secure so thei, by in 5 were hath any time WiiiLiii e COiOi discharge orifice,

he a certain ex ent (iei'ei';

the pipes removable in the manner fifi@]i11' iliusireiieci and described, I heveprevifieri e brush which may be adapted 'te' ciifiiei'enia classes of Work with e, minimum emeent e1? adjustment.

I claim:

1. an air iei'ush the eoziihineiaieh with a mechanism previdedin its Ewe mfl p01 end is needle i 01 eehtroiling the opening ef the same, end furthei" provided with e. eerewh g; e116 an air ehemheii' surround ing the 6&21'28, of e cap threefieai eme the lug tn ine eee the air chamber, we. provided with e petite of eppositely disposed eir pipes having their discharge openings adjacent the 00101- diseharge msifice, suhsientieiiy es descrieed.

in an air brush, e mechanism PFOVik'ifiCi in its fOI'WEflCi par tion wiizh a ceier diseherge erifiee, end further previe ed Wiih e ecrevwthreeieci iug and an air chamber SHZEQ'CHDGLiIigf-K iihe eeme of? e chamber previde with pair 05' 0 p eiteiy dispeseiil eir pipes hevieg sheii". eischarge openings adjacent the mile-1r feeherge mi e, siihsmn' "3y as W 3. in. an air mush the ee 1 'tuhuier sheii, e partition Wiemn .ieceiei at a paint inwardi z X em. one ef the 1e, eeior diseh tube ombweydiv pmjeefiwg from the gmiiiiien 5H). ii'icies'ing suti'reuh" g 1e eeiei' cheehezt'ge "mine and in (3011!,2135

. shell, and e pair 03? 'm."

w h the end; 01? discharge projecting free; the mm on f the eels .che eziiiice,

and iucee seine. WHO; 41 k (TH 31?. "I.

tending more i'uhe, an no v f P 0pm the mg and ee's-vmg in 1 mi; 0:

div Lie sides U'ii eated Within the orifice and projecting therefrom, means for actuating the needle in and out to control the openingof the orifice, and a Emir of oppositely disposed air discharge tu es located immediately adjacent opposite sides of the orifice member, and terminating at points substantially in line with each otherend immediately behind the end of the orifice member, substantially as described.

OLAUS O. WOLD.

Witnesses:

THOMAS A. BANNlNG, Jiz, MARY R. FROST. 

